Tides Today & Tomorrow in Bay Saint Louis, MS

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently falling in Bay Saint Louis, MS.
Next low tide : in 8h 56m at 11:21 pm (-0.1 ft)
Next high tide (tomorrow) : 1:35 pm (2.1 ft)
Sunset today : 8:03 pm
Sunrise tomorrow : 5:59 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #8747437
Common Questions About Tides

Bay Saint Louis, MS Tides - Oct 2045

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:332.52:240.56:516:42Waning Gibbous1Sun
2Mon3:222.53:590.46:516:41Third Quarter2Mon
3Tue4:192.55:000.36:526:39Third Quarter3Tue
4Wed5:242.55:490.36:526:38Third Quarter4Wed
5Thu6:352.46:290.46:536:37Waning Crescent5Thu
6Fri7:592.26:580.66:546:36Waning Crescent6Fri
7Sat10:291.97:090.96:546:35Waning Crescent7Sat
8Sun2:001.51:101.75:501.37:041.26:556:33Waning Crescent8Sun
9Mon1:111.53:171.67:150.96:471.56:556:32New Moon9Mon
10Tue11:422.28:210.66:566:31New Moon10Tue
11Wed9:180.46:576:30New Moon11Wed
12Thu12:132.410:140.36:576:29Waxing Crescent12Thu
13Fri12:522.511:170.36:586:28Waxing Crescent13Fri
14Sat1:342.512:430.46:596:27Waxing Crescent14Sat
15Sun2:202.52:360.46:596:26Waxing Crescent15Sun
16Mon3:102.43:470.47:006:24First Quarter16Mon
17Tue4:042.24:350.57:016:23First Quarter17Tue
18Wed5:032.15:090.57:016:22First Quarter18Wed
19Thu6:051.95:340.77:026:21First Quarter19Thu
20Fri7:151.75:500.87:036:20Waxing Gibbous20Fri
21Sat1:201.59:02 AM1.55:021.45:551.07:036:19Waxing Gibbous21Sat
22Sun12:351.512:381.46:161.15:341.27:046:18Waxing Gibbous22Sun
23Mon11:071.87:110.87:056:17Waxing Gibbous23Mon
24Tue11:152.07:560.67:066:16Full Moon24Tue
25Wed11:382.28:360.47:066:15Full Moon25Wed
26Thu9:160.37:076:14Full Moon26Thu
27Fri12:082.310:010.27:086:13Full Moon27Fri
28Sat12:442.411:000.27:096:13Waning Gibbous28Sat
29Sun1:262.412:260.17:096:12Waning Gibbous29Sun
30Mon2:122.42:070.17:106:11Waning Gibbous30Mon
31Tue3:022.43:160.07:116:10Third Quarter31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8747437)

Common Questions About Bay Saint Louis, MS Tides

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What time does the tide turn (slack tide) in Bay Saint Louis, MS today?

Slack tide in Bay Saint Louis, MS is approximately 6:28 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Bay Saint Louis, MS?

Bay Saint Louis, MS is currently in a spring phase. Tonight's moon is 97% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are near their weekly maximum.

What datum are Bay Saint Louis, MS tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Bay Saint Louis, MS?

Tide predictions for Bay Saint Louis, MS come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Bay Saint Louis, MS?

Tide data for Bay Saint Louis, MS is sourced from NOAA Station #8747437. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8747437.

What is the moon phase in Bay Saint Louis, MS tonight?

Tonight the moon over Bay Saint Louis, MS is Full Moon (97% illuminated). This places Bay Saint Louis, MS in a spring tide cycle, so tidal ranges are near their weekly maximum this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA